20612480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:176

約数の個数: 128

約数和(自身を含む): 58164480

約数和(自身を除く): 37552000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 107, 112, 128, 140, 160, 172, 214, 215, 224, 280, 301, 320, 344, 428, 430, 448, 535, 560, 602, 640, 688, 749, 856, 860, 896, 1070, 1120, 1204, 1376, 1498, 1505, 1712, 1720, 2140, 2240, 2408, 2752, 2996, 3010, 3424, 3440, 3745, 4280, 4480, 4601, 4816, 5504, 5992, 6020, 6848, 6880, 7490, 8560, 9202, 9632, 11984, 12040, 13696, 13760, 14980, 17120, 18404, 19264, 23005, 23968, 24080, 27520, 29960, 32207, 34240, 36808, 38528, 46010, 47936, 48160, 59920, 64414, 68480, 73616, 92020, 95872, 96320, 119840, 128828, 147232, 161035, 184040, 192640, 239680, 257656, 294464, 322070, 368080, 479360, 515312, 588928, 644140, 736160, 1030624, 1288280, 1472320, 2061248, 2576560, 2944640, 4122496, 5153120, 10306240, 20612480]

約数ペア:

[(1, 20612480), (2, 10306240), (4, 5153120), (5, 4122496), (7, 2944640), (8, 2576560), (10, 2061248), (14, 1472320), (16, 1288280), (20, 1030624), (28, 736160), (32, 644140), (35, 588928), (40, 515312), (43, 479360), (56, 368080), (64, 322070), (70, 294464), (80, 257656), (86, 239680), (107, 192640), (112, 184040), (128, 161035), (140, 147232), (160, 128828), (172, 119840), (214, 96320), (215, 95872), (224, 92020), (280, 73616), (301, 68480), (320, 64414), (344, 59920), (428, 48160), (430, 47936), (448, 46010), (535, 38528), (560, 36808), (602, 34240), (640, 32207), (688, 29960), (749, 27520), (856, 24080), (860, 23968), (896, 23005), (1070, 19264), (1120, 18404), (1204, 17120), (1376, 14980), (1498, 13760), (1505, 13696), (1712, 12040), (1720, 11984), (2140, 9632), (2240, 9202), (2408, 8560), (2752, 7490), (2996, 6880), (3010, 6848), (3424, 6020), (3440, 5992), (3745, 5504), (4280, 4816), (4480, 4601)]